<template>
  <div class="login" :style="'background-image:url(' + Background + ');'">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      label-position="left"
      label-width="0px"
      class="login-form"
    >
      <h3 class="title">
        智慧农场云平台
      </h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" />
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0 0 25px 0;">
        记住我
      </el-checkbox>
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>

    <el-dialog
        :close-on-click-modal="false"
        :visible.sync="pwdModifyVisible"
        title="修改密码"
        width="400px"
    >
      <el-form ref="pwdForm" :model="pwdForm" :rules="pwdRules" size="small" label-width="100px">
        <span>  </span>
        <el-form-item label="原密码"  prop="oldPwd">
          <el-input v-model="pwdForm.oldPwd" style="width: 200px;" show-password/>
        </el-form-item>
        <el-form-item label="新密码" prop="newPwd">
          <el-input v-model="pwdForm.newPwd" style="width: 200px;" show-password/>
        </el-form-item>
        <el-form-item label="确认密码" prop="confPwd">
          <el-input v-model="pwdForm.confPwd" style="width: 200px;" show-password/>
        </el-form-item>
        <span>密码必须包含大小写、特殊符号和数字</span>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="text" @click="handleCancelPwd">取消</el-button>
        <el-button type="primary" @click = "handleChangePwd" :loading="pwdChangeLoading">确定</el-button>
      </div>
    </el-dialog>

    <!--  底部  -->
    <div v-if="$store.state.settings.showFooter" id="el-login-footer">
      <span v-html="$store.state.settings.footerTxt" />
      <span> ⋅ </span>
      <a href="https://beian.miit.gov.cn/#/Integrated/index" target="_blank">{{ $store.state.settings.caseNumber }}</a>
    </div>
  </div>
</template>

<script>
import { encrypt } from '@/utils/rsaEncrypt'
import Config from '@/settings'
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
import qs from 'qs'
import Background from '@/assets/images/background.jpeg'
import { updatePass } from '@/api/system/user'
import {getLSList} from "@/api/jf/equipment";
export default {
  name: 'Login',
  data() {
    return {
      pwdModifyVisible: false,
      Background: Background,
      codeUrl: '',
      cookiePass: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      pwdForm: {
        oldPwd: '',
        newPwd: '',
        confPwd: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '用户名不能为空' }],
        password: [{ required: true, trigger: 'blur', message: '密码不能为空' }],
        code: [{ required: true, trigger: 'change', message: '验证码不能为空' }]
      },
      loading: false,
      pwdChangeLoading: false,
      redirect: undefined,
      pwdRules: {
        oldPwd: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ],
        newPwd: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ],
        confPwd: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ],
      },
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const data = route.query
        if (data && data.redirect) {
          this.redirect = data.redirect
          delete data.redirect
          if (JSON.stringify(data) !== '{}') {
            this.redirect = this.redirect + '&' + qs.stringify(data, { indices: false })
          }
        }
      },
      immediate: true
    }
  },
  created() {
    // 获取验证码
    this.getCode()
    // 获取用户名密码等Cookie
    this.getCookie()
    // token 过期提示
    this.point()
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.codeUrl = res.img
        this.loginForm.uuid = res.uuid
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      let password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? '' : password
      password = password === undefined ? this.loginForm.password : password
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ''
      }
    },
    handleChangePwd() {
      this.$refs.pwdForm.validate(valid => {
        if(this.pwdForm.confPwd !== this.pwdForm.newPwd){
          this.$message({
            showClose: true,
            message: '两次输入密码不一致，请重新输入',
            type: 'warning'
          });
          return
        }
        if(this.pwdForm.oldPwd === this.pwdForm.newPwd){
          this.$message({
            showClose: true,
            message: '新旧密码不可相同,请重新输入',
            type: 'warning'
          });
          return
        }
        if (valid) {
          console.log(this.pwdForm)
          const params = {
            oldPwd : this.pwdForm.oldPwd,
            newPwd : this.pwdForm.newPwd,
            userName : this.loginForm.username
          }
          this.pwdChangeLoading = true;
          updatePass(params).then((res) => {
            this.pwdForm.newPwd = "";
            this.pwdForm.confPwd = "";
            this.pwdForm.oldPwd = "";
            this.pwdModifyVisible = false;
            this.getCode();
            this.$notify({
              title: '提示',
              message: '密码修改成功，请重新登陆！',
              type: 'warning',
              duration: 5000
            })
          }).finally(() =>{
            this.pwdChangeLoading = false;
          })
        }
      })
    },
    handleCancelPwd(){
      this.pwdForm.newPwd = "";
      this.pwdForm.confPwd = "";
      this.pwdForm.oldPwd = "";
      this.pwdModifyVisible = false;
      this.getCode();
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        const user = {
          username: this.loginForm.username,
          password: this.loginForm.password,
          rememberMe: this.loginForm.rememberMe,
          code: this.loginForm.code,
          uuid: this.loginForm.uuid
        }
        if (user.password !== this.cookiePass) {
          user.password = encrypt(user.password)
        }
        if (valid) {
          this.loading = true
          if (user.rememberMe) {
            Cookies.set('username', user.username, { expires: Config.passCookieExpires })
            Cookies.set('password', user.password, { expires: Config.passCookieExpires })
            Cookies.set('rememberMe', user.rememberMe, { expires: Config.passCookieExpires })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store
            .dispatch('Login', user)
            .then(() => {
              this.loading = false
              this.$router.push({ path: /* this.redirect || */ '/' })
            })
            .catch((e) => {
              this.getCode();
              if(e.response.data.status === 406) {
                this.pwdModifyVisible = true
              }
              this.loading = false
            })
        } else {
          this.loading = false
          console.log('error submit!!')
          return false
        }
      })
    },
    point() {
      const point = Cookies.get('point') !== undefined
      if (point) {
        this.$notify({
          title: '提示',
          message: '当前登录状态已过期，请重新登录！',
          type: 'warning',
          duration: 5000
        })
        Cookies.remove('point')
      }
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-size: cover;
}
.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 385px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
</style>
